Chemical Composition, <i>In Vitro</i> Digestibility and Fatty Acid Profile of <i>Amaranthus caudatus</i> Herbage During its Growth Cycle

Peiretti, P. G.; Meineri, Giorgia; Longato, Erica; Tassone, Sonia

doi:10.5958/0974-181x.2018.00010.0

Cited by 12 publications

(12 citation statements)

References 32 publications

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“…The A. caudatus showed the least EDDM and EDCP among the other amaranths. The EDDM of A. caudatus ranged from 33.31–34.87% which was lower than the lowest in vitro dry matter digestibility (78.10%) reported by Peiretti et al [ 25 ]. Other than the difference regarding the method for estimating degradability, the A. caudatus in the study of Peiretti et al [ 25 ] was harvested after 90 days, whereas the amaranth forages in this study were harvested after 120 days.…”

Section: Discussioncontrasting

confidence: 56%

“…The EDDM of A. caudatus ranged from 33.31–34.87% which was lower than the lowest in vitro dry matter digestibility (78.10%) reported by Peiretti et al [ 25 ]. Other than the difference regarding the method for estimating degradability, the A. caudatus in the study of Peiretti et al [ 25 ] was harvested after 90 days, whereas the amaranth forages in this study were harvested after 120 days. Accumulation of cell wall contents as the plant advances in maturity dramatically decreases the degradability of plants [ 26 , 27 ].…”

Section: Discussioncontrasting

confidence: 56%

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Evaluation of the Nutrient Composition, In Vitro Fermentation Characteristics, and In Situ Degradability of Amaranthus caudatus, Amaranthus cruentus, and Amaranthus hypochondriacus in Cattle

Nogoy

Song

et al. 2020

Animals

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The amaranth plants showed high potential feed value as forage for ruminants. An in-depth study of this plant, particularly in cattle, will help extend its utilization as an alternative protein and fiber feed source in cattle feeding. In this study, the nutrient compositions of three different species of amaranth, Amaranthus caudatus L., Amaranthus cruentus L., and Amaranthus hypochondriacus L.—two varieties for each species, A.ca 74, A.ca 91, A.cu 62, A.cu 66, A. hy 30, and A. hy 48—were evaluated. The in vitro technique was used to evaluate the fermentation characteristics such as total gas production, total volatile fatty acids (VFA) concentration, pH, and ammonia concentration of the rumen fluid. Moreover, the effective degradabilities of dry matter (EDDM) and crude protein (EDCP) of the amaranth forages were determined through in situ bag technique. The amaranth forages: A. caudatus, A. cruentus, and A. hypochondriacus showed better nutritive value than the locally produced forages in Chungcheong province of Korea. The CP of the amaranth ranged from 11.95% to 14.19%, and the neutral detergent fiber (NDF) and acid detergent fiber (ADF) contents ranged from 45.53% to 70.88% and 34.17% to 49.83%, respectively. Among the amaranth varieties, A. hypochondriacus 48 showed the most excellent ruminant feed nutrient quality (CP, 14.19%; NDF, 45.53%; and ADF, 34.17%). The effective degradabilities of dry matter (EDDM; 33–56%) and crude protein EDCP (27–59%) of the amaranth were lower compared to other studies, which could be due to the maturity stage at which the forages were harvested. Nonetheless, A. hypochondriacus 48 showed the highest EDDM (56.73%) and EDCP (59.09%). The different amaranth species did not differ greatly in terms of total VFA concentration or molar proportions, total gas production, or ammonia-N concentration. The high nutrient composition, and highly effective degradability of dry matter and crude protein, coupled with the favorable fermentation characteristics, suggest that the amaranth forages showed good to excellent feed quality for cattle.

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Section: Discussioncontrasting

confidence: 56%

Section: Discussioncontrasting

confidence: 56%

Evaluation of the Nutrient Composition, In Vitro Fermentation Characteristics, and In Situ Degradability of Amaranthus caudatus, Amaranthus cruentus, and Amaranthus hypochondriacus in Cattle

Nogoy

Song

et al. 2020

Animals

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“…The herbage samples were collected in the morning after evaporation of dew and never collected on rainy days. Sampling was performed according to Peiretti et al [25] at seven progressive morphological stages from early vegetative to grain fill stage from May to July 2014. Plants were cut to a 1–2 cm stubble height with edging shears from two replicate 2 m 2 subplots randomly located in 2 × 7 m 2 plots.…”

Section: Methodsmentioning

confidence: 99%

“…In a previous paper [25], we reported the nutritive characteristics of A. caudatus , and in particular, we evaluated the effects of plant aging on the chemical composition, gross energy, in vitro true digestibility, neutral detergent fiber digestibility and fatty acid profile. However, to the best of our knowledge, no research has been conducted to investigate the change of antioxidant activities and phenolic composition of extracts of A. caudatus during plant growth.…”

Section: Introductionmentioning

confidence: 99%

Antioxidant Activity and Phenolic Composition of Amaranth (Amaranthus caudatus) during Plant Growth

et al. 2019

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The antioxidant activity and phenolic composition of the aerial part of Amaranthus caudatus at seven stages of development were investigated. Total phenolic content, ABTS•+, DPPH•, and O2•− scavenging activity, ferric-reducing antioxidant power (FRAP), and Fe2+ chelating ability were evaluated. The phenolic profile was characterized by 17 compounds. Rutin was predominant in all growth stages, although its content, similar to the quantity of other phenolics, changed during the growth cycle. Flavonols were most abundant in the plants of early flowering and grain fill stages. In contrast, the highest content of hydroxycinnamic acid derivatives was found in the early vegetative stage. The results of antioxidant assays also showed significant differences among plant stages. Generally, the lowest antioxidant activity was found in the shooting and budding stages. Significantly higher activity was observed in amaranths in earlier (vegetative) and later (early flowering and grain fill) stages, suggesting that plants in these stages are valuable sources of antioxidants.

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“…Amaranth leaves have a higher moisture content than the grains [ 22 , 32 , 35 ]. These authors stated that high moisture content in vegetables is an indication of freshness, perishability, and low fats [ 22 , 36 ]. As stated by Venskutonis and Kraujalis [ 8 ], Peiretti [ 37 ], amaranth grains have shown to have a higher protein content than other cereal grains with more lysine than soybean.…”

Section: Nutritive Value Of Amaranth Leaves and Grainsmentioning

confidence: 99%

The Probable Use of Genus amaranthus as Feed Material for Monogastric Animals

Manyelo

Sebola

Rensburg

et al. 2020

Animals

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This review presents, discusses, and provides a comprehensive understanding of the potential use of amaranth as feed for monogastric animals. Amaranth is an ancient nutritious crop that has been cultivated for multiple purposes. In America, Asia, and Africa, the leaves of amaranth species are used as vegetables. The change in climatic conditions globally has resulted in shortages of rainfall, unpredictable weather, and lack of inputs such as fertilizer. This has led to scarcity of protein sources in the market and instability in prices which makes it necessary to consider alternative ingredients in poultry, pigs, fish, and rabbits feed formulation. Amaranth is rich in fiber, proteins, vitamins, minerals, and phenolic compounds which have some health benefits in animals and can be used to improve productivity. It also contains anti-nutritional factors which can be reduced by several processing methods. Moreover, its use in monogastric nutrition is useful because amaranth has shown to improve monogastric productivity without having any adverse effect on animals’ productivity. Thus, from this review, it can be concluded that amaranth leaves and grains can be used successfully in monogastric animals though different processing methods which might need to be employed in order to reduce anti-nutritional factors before use in animals.

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Chemical Composition, In Vitro Digestibility and Fatty Acid Profile of Amaranthus caudatus Herbage During its Growth Cycle

Cited by 12 publications

References 32 publications

Evaluation of the Nutrient Composition, In Vitro Fermentation Characteristics, and In Situ Degradability of Amaranthus caudatus, Amaranthus cruentus, and Amaranthus hypochondriacus in Cattle

Evaluation of the Nutrient Composition, In Vitro Fermentation Characteristics, and In Situ Degradability of Amaranthus caudatus, Amaranthus cruentus, and Amaranthus hypochondriacus in Cattle

Antioxidant Activity and Phenolic Composition of Amaranth (Amaranthus caudatus) during Plant Growth

The Probable Use of Genus amaranthus as Feed Material for Monogastric Animals

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